发明名称 Method for eliminating flow wrinkles in compression molded panels
摘要 PCT No. PCT/US95/01519 Sec. 371 Date Aug. 21, 1997 Sec. 102(e) Date Aug. 21, 1997 PCT Filed Feb. 21, 1995 PCT Pub. No. WO96/26061 PCT Pub. Date Aug. 29, 1996A large surface shaped structure having a smooth surface is formed by compression molding a charge (26) of reinforced molding material containing a thermoplastic material by placing a heated mold charge (26) in a mold (12, 14) which has its peripheral surfaces spaced apart to provide a shear gap (34). The width of the shear gap (34) is adjusted to accept a quantity of molding material sufficient to dissipate residual energy in the flow front of the charge to prevent rebound of the flow front as the structure solidifies.
申请公布号 US5876655(A) 申请公布日期 1999.03.02
申请号 US19970894525 申请日期 1997.08.21
申请人 E. I. DU PONT DE NEMOURS AND COMPANY 发明人 FISHER, JOHN M.
分类号 B29C43/02;B29C43/36;(IPC1-7):B29C43/04 主分类号 B29C43/02
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